1.
The upper part of the soil.
表土土地、土壤表面的一层
2.
sheet erosion (sheet wash)
片蚀, 表土侵蚀, 片状侵蚀
3.
To remove the surface layer of soil from(land.
去掉表土将土壤最上面的一层从（土地上）清除掉
4.
The results showed that the REEs contents in the C horizon the soils were the highest,but Ce was relatively concentrated in A horizon.
结果表明 ,土壤剖面层的底土层含量最高 ,但表土层铈相对富集 .
5.
Magnetic Properties of Dust and Topsoil in Beijing, and Their Environmental Implications;
北京市区尘土与表土磁性差异及其环境学意义
6.
The Development of Soil Surface Crust and the Relationship between Soil Crust Development and Rainfall Splash Erosion;
表土结皮形成过程特征以及与土壤溅蚀的关系
7.
Study on the CaCO_3 Content Characteristics in Conterminous Region of Beijing,Tianjin and Hebei
京津冀接壤区土壤表土层中碳酸钙的分布规律
8.
These soils are well developed and contain a subsurface horizon in which clays have accumulated.
发育良好，土表下有一层粘土淀积土层。
9.
dirt that had become ground into the surface
落在物体表面的尘土
10.
waterproofing of concrete surface
混凝土表面防水工程
11.
schedule of uses and areas
土地用途及面积一览表
12.
This topsoil tends to wash away.
表层土壤要冲掉了。
13.
treatment of concrete surface defect
混凝土表层破坏处理
14.
Heavy rains washed the topsoil away.
大雨把表层土冲蚀掉了
15.
The surface of the soil particle will have a negative charge.
土粒表面会有负电荷。
16.
To spade or plow(soil)to bring the undersoil to the surface.
翻耕，翻土翻（土）或犁（土），从而把下面的泥土翻到表面上来
17.
"The smaller the soil particles, the greater is the surface area of the soil; the water holding capacity, the power of holding plant food and the tenacity of the soil depend on this surface area. "
土粒愈小，则土壤的表面积愈大。土壤的持水力、保肥力和土壤韧度都决定于这一表面积的大
18.
The Structure Status and Effect of Topsoil in Loess Plateau;
黄土地区表层土壤结构状况与效应研究